Pulmonary arterial hypertension of 44mmHg, mainly due to lung disease, heart disease and other reasons, can be treated by drug therapy, interventional therapy, oxygen therapy and other ways. 1. Drug therapy: you can use pulmonary vasodilators such as nifedipine, iloprost, etc. to dilate blood vessels and reduce pulmonary arterial hypertension; diuretics such as furosemide can be used for patients with right heart insufficiency; dopamine can be used for those with right heart failure; multiple drugs can be used in combination if necessary. 2. Interventional therapy: mainly because of chronic thrombotic pulmonary hypertension, can be interventional therapy to relieve pulmonary hypertension. 3. Oxygen therapy: If pulmonary hypertension causes dyspnea or shortness of breath, oxygen can be inhaled to relieve the symptoms. If the pulmonary artery hypertension is 44mmHg, you should consult a doctor in time, and relevant drugs should be used under the guidance of a doctor.